I had been using my site map generator for a few weeks perfectly until a few days ago. I now get this error:

error 'connection was reset' while updating the sitemap

I read a few other postings here and contacted my host 'Rochen' to increase memory_limit and max_execution_time settings but they say not on a shared server. However, I only have around 50 pages so I can't see the hosting provider to be the cause of this error especially as it worked fine beforehand!